Musical instrument tuner



FIG. 1 is a front perspective view of a musical instrument tuner showing our new design;

FIG. 2 is a right side elevation view thereof;

FIG. 3 is a left side elevation view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is front elevation view thereof; and,

FIG. 7 is rear elevation view thereof.

The broken lines in FIGS. 1-7 represent the portions of the musical instrument tuner which form no part of the claimed design. 

CLAIM The ornamental design for a musical instrument tuner, as shown and described. 